Pith Number

pith:DD2ZQNAT

pith:2013:DD2ZQNAT3X5CHWBKPIPJHZ3P3M

not attested not anchored not stored refs pending

L4Fe2As2Te1-xO4-yFy (L = Pr, Sm, Gd): a layered oxypnictide superconductor with Tc up to 45 K

A. Pisoni, J. Karpinski, L. Forr\'o, N. D. Zhigadlo, R. Gaal, S. Bosma, S. Katrych, S. Weyeneth

arxiv:1311.5437 v2 · 2013-11-21 · cond-mat.supr-con

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{DD2ZQNAT3X5CHWBKPIPJHZ3P3M}

Prints a linked badge after your title and injects PDF metadata. Compiles on arXiv. Learn more · Embed verified badge

Record completeness

1 Bitcoin timestamp

2 Internet Archive

3 Author claim open · sign in to claim

4 Citations open

5 Replications open

✓ Portable graph bundle live · download bundle · merged state

The bundle contains the canonical record plus signed events. A mirror can host it anywhere and recompute the same current state with the deterministic merge algorithm.

Receipt and verification

First computed	2026-05-18T01:46:11.633360Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

18f5983413ddfa23d82a7a1e93e76fdb1a00f8b1decdc0286f6bdc8afdd828c2

Aliases

arxiv: 1311.5437 · arxiv_version: 1311.5437v2 · doi: 10.48550/arxiv.1311.5437 · pith_short_12: DD2ZQNAT3X5C · pith_short_16: DD2ZQNAT3X5CHWBK · pith_short_8: DD2ZQNAT

Agent API

Resolver JSON Graph JSON Events JSON Schema Signing key

Verify this Pith Number yourself

curl -sH 'Accept: application/ld+json' https://pith.science/pith/DD2ZQNAT3X5CHWBKPIPJHZ3P3M \
  | jq -c '.canonical_record' \
  | python3 -c "import sys,json,hashlib; b=json.dumps(json.loads(sys.stdin.read()), sort_keys=True, separators=(',',':'), ensure_ascii=False).encode(); print(hashlib.sha256(b).hexdigest())"
# expect: 18f5983413ddfa23d82a7a1e93e76fdb1a00f8b1decdc0286f6bdc8afdd828c2

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "3f17b955a3b648c190b5eb6963f24113aa9888f4a3c98f6747fdb90f626d9aa0",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cond-mat.supr-con",
    "submitted_at": "2013-11-21T15:05:13Z",
    "title_canon_sha256": "c49eeb42ad00e82bcb6fa0b568d8fb0e3490e1ffed5ecabfc5b55d5cbcb46c02"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1311.5437",
    "kind": "arxiv",
    "version": 2
  }
}